/Engine/Source/Runtime/MovieScene/Public/MovieScene.h
Replace an existing binding with another. Assumes ownership of any tracks listed in the binding. Does nothing if no binding can be found.
void ReplaceBinding ( const [FGuid](API\Runtime\Core\Misc\FGuid) & BindingToReplaceGuid, const [FMovieSceneBinding](API\Runtime\MovieScene\FMovieSceneBinding) & NewBinding )